diff options
Diffstat (limited to 'qemu/linux-user/arm/nwfpe/fpa11.h')
| -rw-r--r-- | qemu/linux-user/arm/nwfpe/fpa11.h | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/qemu/linux-user/arm/nwfpe/fpa11.h b/qemu/linux-user/arm/nwfpe/fpa11.h deleted file mode 100644 index 0b072843d..000000000 --- a/qemu/linux-user/arm/nwfpe/fpa11.h +++ /dev/null @@ -1,127 +0,0 @@ -/* - NetWinder Floating Point Emulator - (c) Rebel.com, 1998-1999 - - Direct questions, comments to Scott Bambrough <scottb@netwinder.org> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, see <http://www.gnu.org/licenses/>. -*/ - -#ifndef __FPA11_H__ -#define __FPA11_H__ - - -#include <cpu.h> - -#define GET_FPA11() (qemufpa) - -/* - * The processes registers are always at the very top of the 8K - * stack+task struct. Use the same method as 'current' uses to - * reach them. - */ -extern CPUARMState *user_registers; - -#define GET_USERREG() (user_registers) - -/* Need task_struct */ -//#include <linux/sched.h> - -/* includes */ -#include "fpsr.h" /* FP control and status register definitions */ -#include "fpu/softfloat.h" - -#define typeNone 0x00 -#define typeSingle 0x01 -#define typeDouble 0x02 -#define typeExtended 0x03 - -/* - * This must be no more and no less than 12 bytes. - */ -typedef union tagFPREG { - floatx80 fExtended; - float64 fDouble; - float32 fSingle; -} FPREG; - -/* - * FPA11 device model. - * - * This structure is exported to user space. Do not re-order. - * Only add new stuff to the end, and do not change the size of - * any element. Elements of this structure are used by user - * space, and must match struct user_fp in include/asm-arm/user.h. - * We include the byte offsets below for documentation purposes. - * - * The size of this structure and FPREG are checked by fpmodule.c - * on initialisation. If the rules have been broken, NWFPE will - * not initialise. - */ -typedef struct tagFPA11 { -/* 0 */ FPREG fpreg[8]; /* 8 floating point registers */ -/* 96 */ FPSR fpsr; /* floating point status register */ -/* 100 */ FPCR fpcr; /* floating point control register */ -/* 104 */ unsigned char fType[8]; /* type of floating point value held in - floating point registers. One of none - single, double or extended. */ -/* 112 */ int initflag; /* this is special. The kernel guarantees - to set it to 0 when a thread is launched, - so we can use it to detect whether this - instance of the emulator needs to be - initialised. */ - float_status fp_status; /* QEMU float emulator status */ -} FPA11; - -extern FPA11* qemufpa; - -void resetFPA11(void); -void SetRoundingMode(const unsigned int); -void SetRoundingPrecision(const unsigned int); - -static inline unsigned int readRegister(unsigned int reg) -{ - return (user_registers->regs[(reg)]); -} - -static inline void writeRegister(unsigned int x, unsigned int y) -{ -#if 0 - printf("writing %d to r%d\n",y,x); -#endif - user_registers->regs[(x)]=(y); -} - -static inline void writeConditionCodes(unsigned int x) -{ - cpsr_write(user_registers, x, CPSR_NZCV, CPSRWriteByInstr); -} - -#define ARM_REG_PC 15 - -unsigned int EmulateAll(unsigned int opcode, FPA11* qfpa, CPUARMState* qregs); - -unsigned int EmulateCPDO(const unsigned int); -unsigned int EmulateCPDT(const unsigned int); -unsigned int EmulateCPRT(const unsigned int); - -unsigned int SingleCPDO(const unsigned int opcode); -unsigned int DoubleCPDO(const unsigned int opcode); -unsigned int ExtendedCPDO(const unsigned int opcode); - - -/* included only for get_user/put_user macros */ -#include "qemu.h" - -#endif |